rust/codegen at bb8b11e67dd5833e503d47694d815eec41418675 - rust

History

bors bb8b11e67d Auto merge of #120718 - saethlin:reasonable-fast-math, r=nnethercote

Add "algebraic" fast-math intrinsics, based on fast-math ops that cannot return poison

Setting all of LLVM's fast-math flags makes our fast-math intrinsics very dangerous, because some inputs are UB. This set of flags permits common algebraic transformations, but according to the [LangRef](https://llvm.org/docs/LangRef.html#fastmath), only the flags `nnan` (no nans) and `ninf` (no infs) can produce poison.

And this uses the algebraic float ops to fix https://github.com/rust-lang/rust/issues/120720

cc `@orlp`

2024-02-21 09:43:33 +00:00

auxiliary

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avr

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cffi

Remove ffi_returns_twice feature

2024-01-30 22:09:09 +00:00

cross-crate-inlining

Add -Zcross-crate-inline-threshold=yes

2023-11-07 18:45:11 -05:00

debug-accessibility

Adapt debug-accessibility tests for msvc-style enums

2023-12-15 11:45:03 +00:00

dllimports

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enum

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instrument-xray

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

intrinsics

Separate immediate and in-memory ScalarPair representation

2023-12-15 17:42:05 +01:00

issues

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

lib-optimizations

restrict test to x86-64

2023-09-02 13:42:58 +02:00

loongarch-abi

tests: Fix tests for LoongArch64

2023-08-18 14:56:53 +08:00

macos

Raise minimum supported macOS to 10.12

2023-09-23 19:14:25 -05:00

naked-fn

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non-terminate

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remap_path_prefix

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repr

add support for rustc_abi(assert_eq) and use it to test some repr(transparent) cases

2023-09-07 09:14:29 +02:00

riscv-abi

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sanitizer

CFI: Add char to CFI integer normalization

2023-12-07 11:28:16 -08:00

simd

Add "algebraic" versions of the fast-math intrinsics

2024-02-20 12:39:03 -05:00

simd-intrinsic

Fix alignment passed down to LLVM for simd_masked_load

2023-12-12 13:11:59 +01:00

src-hash-algorithm

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

unwind-abis

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aarch64-struct-align-128.rs

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abi-efiapi.rs

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abi-main-signature-16bit-c-int.rs

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abi-main-signature-32bit-c-int.rs

llvm: Allow noundef in codegen tests

2024-01-02 18:02:17 +00:00

abi-repr-ext.rs

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abi-sysv64.rs

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abi-x86_64_sysv.rs

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abi-x86-interrupt.rs

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addr-of-mutate.rs

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adjustments.rs

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align-byval-vector.rs

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align-byval.rs

Separate immediate and in-memory ScalarPair representation

2023-12-15 17:42:05 +01:00

align-enum.rs

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align-fn.rs

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align-offset.rs

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align-struct.rs

Separate immediate and in-memory ScalarPair representation

2023-12-15 17:42:05 +01:00

alloc-optimisation.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

array-clone.rs

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array-codegen.rs

Copy 1-element arrays as scalars, not vectors

2023-10-07 00:10:32 -07:00

array-equality.rs

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array-map.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

array-optimized.rs

Copy 1-element arrays as scalars, not vectors

2023-10-07 00:10:32 -07:00

ascii-char.rs

update test for new LLVM 18 codegen

2023-11-28 12:10:59 +00:00

asm-clobber_abi.rs

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asm-clobbers.rs

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asm-may_unwind.rs

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asm-maybe-uninit.rs

Allow MaybeUninit in input and output of inline assembly

2023-08-23 21:57:18 +09:00

asm-multiple-options.rs

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asm-options.rs

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asm-powerpc-clobbers.rs

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asm-sanitize-llvm.rs

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

asm-target-clobbers.rs

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async-closure-debug.rs

Build DebugInfo for coroutine-closure

2024-02-09 16:01:29 +00:00

async-fn-debug-awaitee-field.rs

s/generator/coroutine/

2023-10-20 21:14:01 +00:00

async-fn-debug-msvc.rs

s/generator/coroutine/

2023-10-20 21:14:01 +00:00

async-fn-debug.rs

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atomic-operations.rs

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autovectorize-f32x4.rs

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binary-search-index-no-bound-check.rs

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bool-cmp.rs

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box-uninit-bytes.rs

add regression test for not memcpying padding bytes

2023-08-22 15:10:56 +02:00

bpf-alu32.rs

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branch-protection.rs

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call-llvm-intrinsics.rs

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call-metadata.rs

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catch-unwind.rs

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cdylib-external-inline-fns.rs

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cf-protection.rs

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cfguard-checks.rs

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cfguard-disabled.rs

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cfguard-nochecks.rs

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cfguard-non-msvc.rs

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char-ascii-branchless.rs

Refactor some char, u8 ascii functions to be branchless

2023-10-26 21:48:36 -04:00

codemodels.rs

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coercions.rs

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cold-call-declare-and-call.rs

Use preserve_mostcc for extern "rust-cold"

2023-08-26 17:42:59 -07:00

comparison-operators-2-tuple.rs

Remove an unneeded helper from the tuple library code

2023-11-25 22:25:00 -08:00

comparison-operators-newtype.rs

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const_scalar_pair.rs

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consts.rs

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coroutine-debug-msvc.rs

Rename lots of files that had generator in their name

2023-10-20 21:14:02 +00:00

coroutine-debug.rs

Rename lots of files that had generator in their name

2023-10-20 21:14:02 +00:00

dealloc-no-unwind.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

debug-alignment.rs

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debug-column-msvc.rs

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debug-column.rs

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debug-compile-unit-path.rs

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debug-fndef-size.rs

Ignore MSVC in test.

2023-10-08 16:45:45 +00:00

debug-limited.rs

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debug-line-directives-only.rs

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debug-line-tables-only.rs

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debug-linkage-name.rs

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

debug-vtable.rs

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debuginfo-constant-locals.rs

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debuginfo-generic-closure-env-names.rs

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debuginfo-inline-callsite-location.rs

Split out option::unwrap_failed like we have result::unwrap_failed

2024-01-14 12:45:01 -08:00

deduced-param-attrs.rs

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default-hidden-visibility.rs

Add unstable -Zdefault-hidden-visibility cmdline flag for rustc.

2023-12-13 21:14:23 +00:00

default-requires-uwtable.rs

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

direct-access-external-data.rs

Add unstable -Z direct-access-external-data cmdline flag for rustc

2024-01-16 19:15:06 +08:00

drop-in-place-noalias.rs

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drop.rs

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

dst-vtable-align-nonzero.rs

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dst-vtable-size-range.rs

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ehcontguard_disabled.rs

Add support for generating the EHCont section

2023-11-21 13:41:23 -08:00

ehcontguard_enabled.rs

convert ehcont-guard to an unstable option

2023-11-21 14:24:23 -08:00

enable-lto-unit-splitting.rs

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export-no-mangle.rs

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external-no-mangle-fns.rs

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external-no-mangle-statics.rs

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fastcall-inreg.rs

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fatptr.rs

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fewer-names.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

float_math.rs

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fn-impl-trait-self.rs

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foo.s

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force-frame-pointers.rs

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

force-no-unwind-tables.rs

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force-unwind-tables.rs

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

frame-pointer.rs

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function-arguments-noopt.rs

Separate immediate and in-memory ScalarPair representation

2023-12-15 17:42:05 +01:00

function-arguments.rs

Separate immediate and in-memory ScalarPair representation

2023-12-15 17:42:05 +01:00

function-return.rs

Add -Zfunction-return={keep,thunk-extern} option

2023-11-30 20:21:31 +01:00

gdb_debug_script_load.rs

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generic-debug.rs

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global_asm_include.rs

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global_asm_x2.rs

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global_asm.rs

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i128-x86-align.rs

Directly use volatile_load intrinsic

2024-01-19 10:52:01 +01:00

infallible-unwrap-in-opt-z.rs

adapt test for v0 symbol mangling

2024-01-24 14:57:21 +00:00

inherit_overflow.rs

Replace legacy ConstProp by GVN.

2023-12-24 20:08:57 +00:00

inline-always-works-always.rs

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inline-debuginfo.rs

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inline-function-args-debug-info.rs

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

inline-hint.rs

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instrument-coverage-off.rs

coverage: Add UI tests for values accepted by -Cinstrument-coverage

2023-10-23 17:41:40 +11:00

instrument-coverage.rs

coverage: Add UI tests for values accepted by -Cinstrument-coverage

2023-10-23 17:41:40 +11:00

instrument-mcount.rs

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

integer-cmp.rs

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integer-overflow.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

internalize-closures.rs

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intrinsic-no-unnamed-attr.rs

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is_val_statically_known.rs

Support safe intrinsics with fallback bodies

2024-02-12 17:55:36 +00:00

issue-97217.rs

Limit to LLVM 17.0.2 to work around WinEH codegen bug

2023-10-02 11:06:38 +02:00

iter-repeat-n-trivial-drop.rs

tests: LLVM 18 infers an extra noalias here

2024-02-13 10:33:40 +01:00

layout-size-checks.rs

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lifetime_start_end.rs

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link_section.rs

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link-dead-code.rs

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llvm_module_flags.rs

Add -Z llvm_module_flag

2023-11-11 19:48:47 -08:00

llvm-ident.rs

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loads.rs

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local-generics-in-exe-internalized.rs

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lto-removes-invokes.rs

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mainsubprogram.rs

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mainsubprogramstart.rs

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match-optimized.rs

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match-optimizes-away.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

match-unoptimized.rs

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maybeuninit-rvo.rs

Add codegen test for RVO on MaybeUninit

2024-01-03 21:18:07 +01:00

mem-replace-big-type.rs

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mem-replace-simple-type.rs

Stop emitting non-power-of-two vectors in basic LLVM codegen

2023-08-25 20:06:57 -07:00

merge-functions.rs

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method-declaration.rs

Add test for method debuginfo declaration.

2023-08-12 21:27:46 +08:00

mir_zst_stores.rs

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mir-inlined-line-numbers.rs

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move-before-nocapture-ref-arg.rs

add codegen test for #107436

2023-08-26 18:14:47 +09:00

move-operands.rs

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no_builtins-at-crate.rs

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no-assumes-on-casts.rs

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no-dllimport-w-cross-lang-lto.rs

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no-jump-tables.rs

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no-plt.rs

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noalias-box-off.rs

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noalias-box.rs

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noalias-flag.rs

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noalias-refcell.rs

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noalias-rwlockreadguard.rs

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noalias-unpin.rs

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noreturn-uninhabited.rs

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noreturnflag.rs

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nounwind.rs

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nrvo.rs

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optimize-attr-1.rs

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option-as-slice.rs

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option-nonzero-eq.rs

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overaligned-constant.rs

tests: fix overaligned-constant to not over-specify getelementptr instr

2023-12-21 15:53:28 -05:00

packed.rs

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panic-abort-windows.rs

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panic-in-drop-abort.rs

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panic-unwind-default-uwtable.rs

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

personality_lifetimes.rs

Make test compatible with 32-bit as well

2024-01-05 11:45:57 +01:00

pgo-counter-bias.rs

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pgo-instrumentation.rs

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pic-relocation-model.rs

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pie-relocation-model.rs

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ptr-arithmetic.rs

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ptr-read-metadata.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

README.md

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refs.rs

Separate immediate and in-memory ScalarPair representation

2023-12-15 17:42:05 +01:00

repeat-trusted-len.rs

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scalar-pair-bool.rs

Separate immediate and in-memory ScalarPair representation

2023-12-15 17:42:05 +01:00

set-discriminant-invalid.rs

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slice_as_from_ptr_range.rs

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slice-as_chunks.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

slice-indexing.rs

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slice-init.rs

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slice-iter-fold.rs

Update the minimum external LLVM to 16.

2023-11-21 22:40:16 +01:00

slice-iter-len-eq-zero.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

slice-iter-nonnull.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

slice-position-bounds-check.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

slice-ref-equality.rs

Bless codegen tests.

2023-08-17 18:28:33 +00:00

slice-reverse.rs

…

slice-windows-no-bounds-check.rs

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some-abis-do-extend-params-to-32-bits.rs

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some-global-nonnull.rs

…

sparc-struct-abi.rs

llvm: Allow noundef in codegen tests

2024-01-02 18:02:17 +00:00

split-lto-unit.rs

…

sroa-fragment-debuginfo.rs

Restrict test to x86_64.

2023-08-26 22:55:52 +00:00

sse42-implies-crc32.rs

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stack-probes-inline.rs

Enable stack probes on aarch64 for LLVM 18

2023-12-07 17:17:00 -08:00

stack-protector.rs

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static-relocation-model-msvc.rs

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staticlib-external-inline-fns.rs

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stores.rs

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swap-large-types.rs

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swap-small-types.rs

Tweak the threshold for chunked swapping

2024-01-19 23:00:34 -08:00

target-cpu-on-functions.rs

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

target-feature-inline-closure.rs

Don't accidentally detect the commit hash as an fadd instruction

2023-10-10 16:59:49 +11:00

target-feature-overrides.rs

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thin-lto.rs

Add thinlto support to codegen, assembly and coverage tests

2023-11-30 18:48:03 +08:00

thread-local.rs

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tied-features-strength.rs

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

to_vec.rs

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trailing_zeros.rs

add codegen test for issue 107554

2023-08-16 14:04:05 +09:00

transmute-optimized.rs

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transmute-scalar.rs

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try_identity.rs

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try_question_mark_nop.rs

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tune-cpu-on-functions.rs

Automatically enable cross-crate inlining for small functions

2023-10-17 19:53:51 -04:00

tuple-layout-opt.rs

Remove some wasm/emscripten ignores

2023-08-25 19:48:20 -04:00

unchecked_shifts.rs

tests: update check for inferred nneg on zext

2023-11-13 10:43:33 -05:00

unchecked-float-casts.rs

…

uninit-consts.rs

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union-abi.rs

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unwind-and-panic-abort.rs

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unwind-extern-exports.rs

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unwind-extern-imports.rs

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unwind-landingpad-cold.rs

Limit to LLVM 17.0.2 to work around WinEH codegen bug

2023-10-02 11:06:38 +02:00

unwind-landingpad-inline.rs

Limit to LLVM 17.0.2 to work around WinEH codegen bug

2023-10-02 11:06:38 +02:00

used_with_arg.rs

…

var-names.rs

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vec_pop_push_noop.rs

update codegen tests

2024-01-22 15:46:32 +01:00

vec-as-ptr.rs

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vec-calloc.rs

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vec-in-place.rs

Update the minimum external LLVM to 16.

2023-11-21 22:40:16 +01:00

vec-iter-collect-len.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

vec-iter.rs

Don't use mem::zeroed in vec::IntoIter

2024-02-16 10:44:39 -05:00

vec-optimizes-away.rs

Remove uses of no-system-llvm

2024-01-23 10:31:07 +01:00

vec-reserve-extend.rs

update codegen tests

2024-01-22 15:46:32 +01:00

vec-shrink-panik.rs

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vecdeque_no_panic.rs

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vecdeque-drain.rs

add codegen test

2024-02-16 13:11:05 +01:00

vecdeque-nonempty-get-no-panic.rs

Add test to guard against VecDeque optimization regression

2023-09-21 20:42:21 -07:00

virtual-function-elimination-32bit.rs

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virtual-function-elimination.rs

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wasm_casts_trapping.rs

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wasm_exceptions.rs

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zip.rs

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zst-offset.rs

Address review comments

2024-01-02 15:03:14 +01:00

README.md

The files here use the LLVM FileCheck framework, documented at https://llvm.org/docs/CommandGuide/FileCheck.html.

One extension worth noting is the use of revisions as custom prefixes for FileCheck. If your codegen test has different behavior based on the chosen target or different compiler flags that you want to exercise, you can use a revisions annotation, like so:

// revisions: aaa bbb
// [bbb] compile-flags: --flags-for-bbb

After specifying those variations, you can write different expected, or explicitly unexpected output by using <prefix>-SAME: and <prefix>-NOT:, like so:

// CHECK: expected code
// aaa-SAME: emitted-only-for-aaa
// aaa-NOT:                        emitted-only-for-bbb
// bbb-NOT:  emitted-only-for-aaa
// bbb-SAME:                       emitted-only-for-bbb